Following a series of successful fire tests on partitions in wooden constructions, fire-resistant glass panels were certified with fire protection classes of the following types:
EW 30, EW 60, and EI 15 up to EI 120.

During the certification process, it was found that fire-resistant double and triple safety glass panels of type P5A can be installed in wooden structures.

Other important wooden system options include fire-resistant glass on one or both sides, in irregular frame shapes that can be secured with special pins or screws, as well as prefabricated frames with on-site assembly.